春天严寒的天气降低了母鸡的产蛋能力。Freezing weather in spring hampered the hens' ability to lay.他们都是多产的饲养员，养的母鸡很多都可以下6个蛋之多。They are prolific breeders, with many hens laying up to six eggs.一群母鸡四处乱窜，搅起一团尘土。The hens darted away on all ...
The trickling stream glistened in the sunlight.涓涓溪流在阳光下闪闪发亮。The nitrogen source's effects on the purification performance of air phase trickling biofilter are significant.氮源对于气相生物滴滤床的净化效果有显著的影响.The trickling filter ...